Home
Class 10
MATHS
90 % pure and 97% pure acid solutions ar...

90 % pure and 97% pure acid solutions are mixed to obtain 21 litres of 95 % pure acid solution. Find the quantity of each type of acid to be mixed to form the mixture.

Text Solution

Verified by Experts

The correct Answer is:
6 litres of 90% pure acid and 15 litres of 97% pure acid.
Promotional Banner

Topper's Solved these Questions

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    KUMAR PRAKASHAN|Exercise Objective Questions (Fill in the blanks)|5 Videos

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    KUMAR PRAKASHAN|Exercise Objective Questions|10 Videos

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    KUMAR PRAKASHAN|Exercise EXERCISE 3.7 (Optional)|12 Videos

  • INTRODUCTION TO TRIGONOMETRY

    KUMAR PRAKASHAN|Exercise Objective Questions|24 Videos

  • POLYNOMIALS

    KUMAR PRAKASHAN|Exercise OBJECTIVE QUESTIONS|26 Videos

Similar Questions

Explore conceptually related problems

A manufacturer has 600 litres of a 12% solution of acid. How many litres of a 30% acid solution must be added to it so that acid content in the resulting mixture will be more than 15% but less than 18%?

Calculate the amount of 95% pure Na_(2)CO_(3) required to prepare 5 litre of 0.5 M solution.

A solution of 8% boric acid is to be diluted by adding a 2% boric acid solution to it. The resulting mixture is to be more than 4% but less than 6% boric acid. If we have 640 litres of the 8% solution, how many litres of the 2% solution will have to be added?

The density of a solution containing 13% by mass of sulphuric acid is 1.09 g..ml . Calculate the molarity and normality of the solution.

KUMAR PRAKASHAN-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES -Practice Thoroughly
  1. In the given figure, ABCD is a rectangle, Find the values of x and y.

    Text Solution

    |

  2. For what value of k, will the graphs of following pair of linear equat...

    Text Solution

    |

  3. If ax + by = a^(2)-b^(2) and bx + ay = 0, find the value of x + y.

    Text Solution

    |

  4. For what values of a and b does the following pair of linear equations...

    Text Solution

    |

  5. Given the linear equation x - 2y - 6 = 0, write another linear equatio...

    Text Solution

    |

  6. Find whether the following pair of linear equations is consistent or i...

    Text Solution

    |

  7. Draw the graphs of the equations x = 3, x = 5 and 2x - y - 4 = 0. Also...

    Text Solution

    |

  8. The cost of 4 pens and 4 pencil boxes is Rs. 100. Three times the cost...

    Text Solution

    |

  9. Determine algebraically the vertices of the triangle formed by lines 3...

    Text Solution

    |

  10. The sum of a two digit number and the number formed by interchanging i...

    Text Solution

    |

  11. 90 % pure and 97% pure acid solutions are mixed to obtain 21 litres of...

    Text Solution

    |

  12. The incomes of two persons A and B are in the ratio 8:7 and the ratio ...

    Text Solution

    |

  13. Three lines x + 3y = 6, 2x - 3y = 12 and x = 0 are enclosing a beautif...

    Text Solution

    |

  14. A fraction becomes (19)/(23) if 2 is added to both its numerator and ...

    Text Solution

    |

  15. Jamila sold a table and a chair for Rs. 1050, thereby making a profit ...

    Text Solution

    |

  16. A railway half ticket costs half the full fare, but the reservation ch...

    Text Solution

    |

  17. Vijay had some bananas and he divided them into two lots A and B. He s...

    Text Solution

    |

  18. In a competitive examination, one mark is awarded for each correct an...

    Text Solution

    |

  19. If x-1 is a factor of 2x^(3)+ax^(2)+2bx+1 and 2a-b=4. Find the values ...

    Text Solution

    |

  20. Solve for x and y:2^(x)+3^(y)=17 and 2^(x+2)-3^(y+1)=5.

    Text Solution

    |